package com.atguigu.distributed.lock.leecode;

import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

class ShareResource{
    private int number = 1;//A:1 B:2 C:3
    private Lock lock = new ReentrantLock();
    private Condition c1 = lock.newCondition();
    private Condition c2 = lock.newCondition();
    private Condition c3 = lock.newCondition();
    //1判断
    public void print5(){
        lock.lock();
        try {
            while(number!=1){
                c1.await();
            }
            for (int i = 1; i <= 5; i++) {
                System.out.println(Thread.currentThread().getName()+"\t");
            }
            number = 2;
            c2.signal();


                }catch (Exception e){
                    e.printStackTrace();
                }finally {
                    lock.unlock();
                }
    }
    public void print10(){
        lock.lock();
        try {
            while(number!=2){
                c2.await();
            }
            for (int i = 1; i <= 10; i++) {
                System.out.println(Thread.currentThread().getName()+"\t");
            }
            number = 3;
            c3.signal();


        }catch (Exception e){
            e.printStackTrace();
        }finally {
            lock.unlock();
        }
    }
    public void print15(){
        lock.lock();
        try {
            while(number!=3){
                c3.await();
            }
            for (int i = 1; i <= 15; i++) {
                System.out.println(Thread.currentThread().getName()+"\t");
            }
            number = 1;
            c1.signal();


        }catch (Exception e){
            e.printStackTrace();
        }finally {
            lock.unlock();
        }
    }
}

public class SyncAndReentrantLockDemo {
    public static void main(String[] args) {
        ShareResource shareResource = new ShareResource();
        new Thread(()->{
            for (int i = 0; i <= 10 ; i++) {
                shareResource.print5();
            }

        },"AA").start();
        new Thread(()->{
            for (int i = 0; i <= 10 ; i++) {
                shareResource.print10();
            }

        },"BB").start();
        new Thread(()->{
            for (int i = 0; i <= 10 ; i++) {
                shareResource.print15();
            }

        },"CC").start();

    }
}
